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Volatility can also describe the tendency of a vapor to condense into a liquid or solid; less volatile substances will more readily condense from a vapor than highly volatile ones. [1] Differences in volatility can be observed by comparing how fast substances within a group evaporate (or sublimate in the case of solids) when exposed to the ...
Volatile organic compounds (VOCs) are organic compounds that have a high vapor pressure at room temperature. [1] They are common and exist in a variety of settings and products, not limited to house mold , upholstered furniture , arts and crafts supplies, dry cleaned clothing, and cleaning supplies . [ 2 ]
In this context, volatile indicates that it can be expelled as a gas through the lungs. [16] [17] Carbonic acid is the only physiologically volatile acid; all other acids are physiologically nonvolatile acids (also known as a fixed or metabolic acids). Volatile acid results from the aerobic oxidation of substances such as carbohydrates and ...
Volatile anaesthetics, a class of anaesthetics which evaporate or vaporize easily; Volatile substance abuse, the abuse of household inhalants containing volatile compounds; Volatile oil, also known as essential oil, an oil derived from plants with aromatic compounds used in cosmetic and flavoring industries
A flavouring substance (or flavouring substances) which is (or are) obtained, by physical, enzymatic, or microbiological processes, from material of vegetable or animal origin which material is either raw or has been subjected to a process normally used in preparing food for human consumption and to no process other than one normally so used [19]
Total dissolved solids include both volatile and non-volatile solids. Volatile solids are ones that can easily go from a solid to a gaseous state. Non-volatile solids must be heated to a high temperature, typically 550 °C, in order to achieve this state change. Examples of non-volatile substances include salts and sugars. [3]
Examples of plants with nonexcretory phytoncides are onion, garlic, and horseradish. Examples of plants with volatile phytoncides are pine, oak, eucalyptus, and members of the Sophora genus. [3] Sophora flavescens. Some phytoncides affect only insects feeding on the plant, acting on the insect's autonomic nervous system.
For example, protocatechuic acid and pyrocatechol are found in Agaricus bisporus [46] as well as other phenylated substances like phenylacetic and phenylpyruvic acids. Other compounds like atromentin and thelephoric acid can also be isolated from fungi in the Agaricomycetes class. Orobol, an isoflavone, can be isolated from Aspergillus niger ...